noun the stem or stalk that supports the flower or fruit of a plant, or a cluster of flowers or fruits.
2. peduncle ·noun a sort of stem by which certain shells and barnacles are attached to other objects. ·see ·illust. of barnacle.
3. peduncle ·noun a band of nervous or fibrous matter connecting different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.